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Date: Sun, 01 Mar 2009 23:56:39 +0100
From: Roel Kluin <roel.kluin@...il.com>
To: lkml <linux-kernel@...r.kernel.org>
Subject: lp: too large subtraction on unsigned?
vi drivers/char/lp.c +705
note that count is unsigned, and we do the loop:
do {
if (canwrite > 0) {
...
count -= written;
}
if (lf && canwrite <= 0) {
...
count--;
...
}
} while (count > 0 && (CONSOLE_LP_STRICT || written > 0));
Isn't this wrong?
Roel
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